package java复习202503.A_类和接口的区别;

public abstract class AbstractDemo {
    int a1 ;
    int a2 = 1;
    static int a3 ;
    final int a4 = 4;

    abstract void am1();

    void am2(){
        System.out.println("am2 成员方法 1111");
    }

    static void am3(){
        System.out.println("am3 static 3333");
    }


}
